Chapter 2: Main Application
94
Tip:
The following shows what happens when you drag a figure from the Geometry window to the work area.
Dropping this into the work area:
Displays this:
Point
Coordinates as a vector (2 × 1 matrix)
Line
Equation of the line
Vector
An ordered pair (head of vector assuming the tail is at the origin)
Circle, Arc, Ellipse, Function, or Curve
Corresponding equation
Polygon
2 ×
n
matrix
Open Polygon (Created by Animation)
n
× 2 matrix
Line Pair
Simultaneous equations for the pair
A point and its image under a transformation
Matrix expression for the transformation
2-10
Using Verify
Verify provides you with a powerful tool to check whether your numeric or algebraic manipulations are correct.
Verify will assist you in simplifying an expression by verifying whether or not the expression you entered is
equivalent to your original expression. If it is, you will get a pleasant response; if not, you will need to correct
your mistake before continuing.
u
To start up Verify
1. On the work area window, tap the right most
toolbar down arrow button.
2. On the icon palette that appears, tap
W
.
Left-side expression
Right-side expression
u
Verify window menus and buttons
• Clear the Verify window ............................................................................... File - New, Edit - Clear All or
O
• Open or save a file ............................................................................................File - Open, File - Save or
{
• Specify the complex number calculation range for Verify ...........................................................................
T
• Specify the real number calculation range for Verify ..................................................................................
Y
• Specify the positive real number calculation range for Verify .....................................................................
U
• Verify the equation starting from the first line ..............................................................................................
!
• Verify the equation starting from the current line ........................................................................................
"
0244
To factor 50 completely
0245
Continuing from example
0244
, to rewrite
x
2
+ 1 in factored form
